The principle used in a musket was just like the principle behind cannon which is why muskets were also called mini canons. As it was difficult for a soldier to measure the amount of powder to be poured down the barrel, it was supplied in a pre-measured pouch that had to be torn apart by the soldier before every shot.
The approx distance between Heathrow and Gatwick Airport in a straight line is 29 miles or 46.66 KMS See the maps and links below for additional information related to driving distances, fuel costs and estimated journey times for this trip from Heathrow to Gatwick Airport.Happy trails!!Advertisements:f you were travelling in a mid range car that averaged 40 MPG and were paying Â£6.36 per gallon (1.40 per litre) for your petrol then the cost for this trip based on an estimated driving distance of 35.38 miles (56.93 kms) , from Heathrow to Gatwick Airport for your fuel would be in the region of Â£5.63.
London Heathrow Airport, LHR About 15 mi W of London; London Gatwick Airport, LGW About 25 mi S of London; London City Airport, LCY About 8 mi E of London; London Stansted Airport, STN About 30 mi NNE of London; London Luton Airport, LTN About 27 mi NNW of London; London Southend Airport, SEN About 36 mi E of London; Other cities near London